Question

question 20
the skeleton of a child contains more
than the skeleton of the adult.
a phosphorus
b magnesium
c collagen
d calcium

Explanation:

Collagen is a protein that provides flexibility to the bones. Children's bones have more collagen, which makes them more flexible and less likely to break compared to adult bones that have more calcium (which provides hardness). Phosphorus and magnesium are minerals but not the key component in this context. Calcium is more abundant in adult bones for rigidity.

Answer:

C. collagen